.nested-fields
  - bulk_units = Nomen::Unit.where(dimension: :mass).selection.reverse
  = link_to_remove_nested_association(:tactics, f)
  = f.input :name
  = f.input :mode, as: :radio_buttons
  = f.delta_field(:planned_on, :mode_delta, :mode_unit_name, :days, {'name': :date.tl})
